Adopt changes with storing TileSpec in attrs

Author: Mr-Milk

wsidata/_model/core.py

@@ -232,7 +232,7 @@ def tile_spec(self, key: str) -> TileSpec:
             The key of the tiles.
 
         """
-        if self.TILE_SPEC_KEY in self:
+        if self.TILE_SPEC_KEY in self.attrs:
             spec = self.attrs[self.TILE_SPEC_KEY][key]
             return TileSpec(**spec)
 

wsidata/io/_elems.py

@@ -72,7 +72,7 @@ def add_tiles(wsidata, key, xys, tile_spec: TileSpec, tissue_ids, **kws):
     cs = ShapesModel.parse(gdf, **kws)
     wsidata.shapes[key] = cs
 
-    if wsidata.TILE_SPEC_KEY in wsidata.tables:
+    if wsidata.TILE_SPEC_KEY in wsidata.attrs:
         spec_data = wsidata.attrs[wsidata.TILE_SPEC_KEY]
         spec_data[key] = tile_spec.to_dict()
     else: